All Flashcards
What is the difference between Static and Kinetic Friction?
Static Friction: Opposes the start of motion. | Kinetic Friction: Opposes motion when the object is already moving.
Compare Open and Closed Systems.
Open System: Exchanges matter and/or energy with surroundings. | Closed System: No exchange of matter or energy with surroundings.
Differentiate between Conservative and Non-conservative Systems.
Conservative Systems: Total mechanical energy is conserved (Kinetic + Potential = Constant). | Non-conservative Systems: Total mechanical energy is not conserved (energy can be lost to friction, etc.).
What is the difference between static and kinetic friction?
Static Friction: Opposes the start of motion. | Kinetic Friction: Opposes motion when the object is already moving.
Compare Closed and Open Systems.
Closed Systems: No exchange of matter or energy with surroundings. | Open Systems: Exchange of matter and/or energy with surroundings.
Compare Conservative and Non-conservative Systems.
Conservative Systems: Total mechanical energy is conserved. | Non-conservative Systems: Total mechanical energy is not conserved (energy can be lost).
What are the steps to draw a Free-Body Diagram (FBD)?
- Draw the object as a point or simple shape. 2. Draw arrows (vectors) to represent each force, with the tail on the object. 3. Label each force.
How do you analyze an Atwood's Machine?
Analyze the whole system or individual masses by applying Newton's Second Law to each mass and considering the tension in the string.